package com.wxl.demo.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

@Configuration
public class MyRedisConfig extends CachingConfigurerSupport {

	@Bean
	public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
		// 分别创建String和JSON格式序列化对象，对缓存数据key和value进行转换
		RedisSerializer<String> strSerializer = new StringRedisSerializer();
		Jackson2JsonRedisSerializer<?> jacksonSeial = new Jackson2JsonRedisSerializer<>(Object.class);
		// 解决查询缓存转换异常的问题
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jacksonSeial.setObjectMapper(om);
		// 定制缓存数据序列化方式及时效
		RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
				.entryTtl(Duration.ofDays(1))
				.serializeKeysWith(RedisSerializationContext.SerializationPair
						.fromSerializer(strSerializer))
				.serializeValuesWith(RedisSerializationContext.SerializationPair
						.fromSerializer(jacksonSeial))
				.disableCachingNullValues();

		return RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(config).build();

	}


}
